.s. air force security forces in saudi arabia and pakistan after two near-death experiences he returnd home with severe post traumatic stress disorder. >> before i met her, i was a wreck. i was out of control. i would start fights for no reason. >> reporter: deeply depressed and filled with rage, he decided to end his misery with his pistol. >> cocked it back. put it right in my mouth. and i sat there and i cried for about a minute or two. i was this close to pulling the trigger. >> reporter: that's when cheyenne, who was then six months old came to his rescue. >> she came up behind me and licked my ear. she gave me this look of, "what are you doing, man?" like," who is going to let me sleep in your bed. listen, if you take care of me. i'll take care of you." good girl. >> reporter: sharpe realized at that moment he had something to live for but he didn't stop there. he decided that what saved him might save others like him. so he started pet to vets, now known as p-2-v, an organization that has put dozens of injured veterans together with their own four legged saviors, dogs and cats.